I have had the privilege of working with this firm, notably Shaukat Karjeker and David Carstens, for several years addressing domestic and international patent prosecution and trademark registration matters. They are consummate professionals as well as courteous and timely in their responses. Highly recommend.

I spoke ‍♀️ ‍♀️ ‍♀️ ‍♀️ to someone here and I really appreciated the way that he talks to me very helpful with the Verbage when it comes to the digital market and I hope to do business with the on

Wonderful firm. Extremely knowledgeable in their area. Very responsive, great advice.

Carstens & Cahoon was the best and right choice for professional guidance as we launched our Company's IP into a global, highly competitive marketplace. On top of their IP expertise, they sat beside us - advising on how best to approach and resolve complex domestic licensing challenges we faced with our evolving patent strategy. We couldn't have asked for more than the world-class counsel we received from the team at Carstens & Cahoon.

Vincent Allen and the entire staff treated us amazing and took us from an idea to owning two issued patents. Not only did they help us achieve this, they educated us along the way! We are clients for life now

The team at Carstens & Cahoon are world class. We engaged them after getting challenged on one of our trademark applications, and couldn't be happier with the diligence and professionalism they displayed through the long ordeal. If we didn't have Vincent and his team in our corner, the results could have ended up very differently. They are definitely my "Go To" for any intellectual property related matters.

I've engaged the Carstens & Cahoon LLP law firm for more than a decade - they are a GO TO law firm that you can trust with your intellectual property needs.

Carstens & Cahoon, LLP did a wonderful job with the response to my trademark refusal. Their communication was great and they took the time to help me understand the process. Their work showed they were behind my case 100%. Very grateful for Carstens & Cahoon, LLP and highly recommend.